package lpr 1:2008.05.17.1 failed to install/upgrade: subprocess installed post-installation script returned error exit status 6

Failure to install Rosegarden audio software midway

ProblemType: Package
DistroRelease: Ubuntu 15.04
Package: lpr 1:2008.05.17.1
ProcVersionSignature: Ubuntu 3.19.0-30.34-generic 3.19.8-ckt6
Uname: Linux 3.19.0-30-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.17.2-0ubuntu1.5
Architecture: amd64
Date: Sun Oct 18 15:55:58 2015
DuplicateSignature: package:lpr:1:2008.05.17.1:subprocess installed post-installation script returned error exit status 6
ErrorMessage: subprocess installed post-installation script returned error exit status 6
InstallationDate: Installed on 2015-09-25 (22 days ago)
InstallationMedia: Lubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422)
RelatedPackageVersions:
 dpkg 1.17.25ubuntu1
 apt 1.0.9.7ubuntu4.1
SourcePackage: lpr
Title: package lpr 1:2008.05.17.1 failed to install/upgrade: subprocess installed post-installation script returned error exit status 6
UpgradeStatus: No upgrade log present (probably fresh install)
mtime.conffile..etc.init.d.lpd: 2014-08-08T23:47:59